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Finding the Fourth Proportional to 795.90, 1,098.28 and 464.31

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Solution

The fourth proportional to 795.90, 1,098.28 and 464.31 is: 640.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    795.90 : 1,098.28 = 464.31 : x
  2. Step 2: Convert to fraction form
    795.90/1,098.28 = 464.31/x
  3. Step 3: Cross multiply
    795.90x = 1,098.28 × 464.31
  4. Step 4: Simplify right side
    795.90x = 509,941.18
  5. Step 5: Solve for x
    x = 509,941.18/795.90
  6. Step 6: Final answer
    x = 640.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.